For bikepacking, you should pay particular attention to the weight and pack size of your camping mat so that it does not take up too much space when transported on the bike. Of course, there is a certain compromise to be made here in terms of comfort. Above all, the mat should fit you and your height. It's no use constantly slipping off the mat at night and waking up poorly-rested the next morning.
The Pump Sack is the ideal accessory for my camping mat. I also use it to transport my sleeping bag. This not only saves a bit of space and weight, but also provides extra protection for the sleeping bag.